What is Perpetual Motion Machine of the First kind (PMM1)? - Thermodynamics

Q.  A machine which can supply mechanical work continuously without consumption of any energy is called as
- Published on 20 Aug 15

a. Perpetual Motion Machine of the First kind (PMM1)
b. Perpetual Motion Machine of the Second kind (PMM2)
c. Perpetual Motion Machine of the Third kind (PMM3)
d. none of the above

ANSWER: Perpetual Motion Machine of the First kind (PMM1)
 
The first law of thermodynamics states that the energy can neither be created nor be destroyed. It can only gets transformed from one form to another form. Perpetual Motion Machine is the machine which violates the law of thermodynamics. A machine, which can supply mechanical work continuously without consumption of any energy, violates the first law of thermodynamics. Thus this machine is the Perpetual Motion Machine of the First kind (PMM1). When a machine violates the second law or third law of thermodynamics then this machine is called as PMM2 or PMM3 respectively. Perpetual Motion Machine is a hypothetical concept.
 

    Discussion

  • robin kumar   -Posted on 18 Apr 17
    remove every type of losses you will get PMMs.
  • bhuvaneah   -Posted on 10 Aug 16
    perpetual motion machine-1 is a machine which does not obey first law of thermodynamics. we all know that ,as one cannot do the work continuously without consuming some amount of energy. perpetual motion machine works by supplying work continuously without consuming or taking in some energy. so it is impossible

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